Taglist plugin todo list

1. Group tags according to the scope and display them. For example, group all the tags belonging to a C++/Java class
2. When opening a new Vim tab, automatically open the taglist window.
3. Support for displaying tags in a modified (not-yet-saved) file.
4. Automatically open the taglist window only for selected filetypes. For other filetypes, close the taglist window.
5. When using the shell from the MKS toolkit, the taglist plugin doesn't work.
6. The taglist plugin doesn't work with files edited remotely using the netrw plugin. The exuberant ctags utility cannot process files over scp/rcp/ftp, etc.